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Particle size separation device

A separation device and particle size technology, applied in the field of particle size separation devices, can solve the problem of inability to distinguish the ratio of particles of different sizes, and achieve the effects of reasonable structure, convenient operation and high accuracy

Active Publication Date: 2018-11-02
TAIZHOU UNIV
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Problems solved by technology

[0003] Particles in vehicle exhaust are mainly carbon-containing particles with a size ranging from tens of microns to a few tenths of a micron. At present, particle detection methods mainly include filter paper smoke meter and opacimeter, both of which are aimed at The total mass of particles of all sizes is measured, and the proportion of particles of different sizes cannot be distinguished

Method used

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, invention is described in further detail:

[0022] The invention is used for the detection of particulate matter in vehicle exhaust. The invention is based on the adsorption of electrons to charge the particulate matter in vehicle exhaust. Since the larger-sized particulate matter is also larger in mass, the difference in the electric field force received by the charged particulate matter can be achieved. , realize the separation and statistics of particles of different sizes, and provide a basis for a more in-depth analysis of the main process and mechanism of vehicle smoke generation under various working conditions. The invention can not only detect the particle matter exhausted by the vehicle, but also carry out the separation statistical detection of the particle matter to other gases containing the particle matter.

[0023] Such as figure 1 As shown, the present invention includes an annular orbital cavity 2 and an ...

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Abstract

The invention discloses a particle size separation device which comprises an annular rail cavity, and an electron-beam generator, separation voltage holes, a breathable voltage reduction hole and a sampler which are arranged on the annular rail cavity, wherein the multiple separation voltage holes are connected with a power supply controller by virtue of wires. According to the device disclosed bythe invention, separation and statistics of particles of different sizes can be performed by utilizing electric field actions of particles after electrification, the particles can be totally separated and counted by adopting the annular rail cavity, and the detection result is high in accuracy. The particle size separation device disclosed by the invention is reasonable in structure and convenient to operate, and can be used for separation and statistics of various gaseous fine particles.

Description

technical field [0001] The invention belongs to the field of particle separation, in particular to a particle size separation device capable of separating and counting particles of different particle sizes. Background technique [0002] As people pay more attention to air pollution, vehicle exhaust standards continue to increase. The main limiting parameters for vehicle exhaust are nitrogen oxides and particulate matter. Especially for diesel engines, the emission control and detection of particulate matter is more important. [0003] Particles in vehicle exhaust are mainly carbon-containing particles with a size ranging from tens of microns to a few tenths of a micron. At present, particle detection methods mainly include filter paper smoke meter and opacimeter, both of which are aimed at The total mass of particles of all sizes is measured and it is not possible to distinguish the proportions of particles of different sizes. For the particles in the vehicle exhaust, the g...

Claims

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Application Information

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IPC IPC(8): G01N15/10G01N1/28
CPCG01N1/28G01N15/1031G01N2015/1028
Inventor 赵海龙陈恺林忠英
Owner TAIZHOU UNIV
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